Throat

The neck is a part of the body. The neck is an area designated front of the lower jaw to the sternum, on the side defined areas of the angle of the mandible and trapezoidal muscle. It completed the transition to the shoulders and collarbone. The neck is very dynamic and variable region of the body. This helps him axial load-bearing structure – the cervical spine consisting of seven cervical vertebrae, then the muscles that create 5 layers of muscle.

Neck muscles

  • The first layer is a skin muscle, i.e. musculus platysma
  • This layer contains a rocking, ie. Musculus sternocleidomastoideum
  • Clamping muscles to the hyoid bone, muscle and over- podjazylkové, supra musculi and infrahyoidei
  • In this layer are oblique muscles, roll, musculi scaleni
  • Muscles clamping the spine and skull

Jugular veins

The largest vessels in the neck the carotid artery, internal and external – internal carotid artery and external, and the jugular vein external and internal – the jugular vein internal and external.

Cervical lymph nodes

On the neck there are two nodal system. It is a superficial cervical nodes (nodi lymphatic cervicales superficiales), where the sap flows from the skin and subcutaneous tissue of the head and neck. Nodules form a discontinuous belt. On the neck are also deep nodes (nodi lymphatic cervicales Profundo), which are drained example. Tonsils, salivary glands, thyroid gland etc. Any inflammatory pathology of the head can cause enlargement of cervical lymph nodes, which become palpable.

Innervation neck

Innervation neck is created called. Cervical plexus (cervical plexus), which is composed of many nerves, from the front root ganglia roots from the area of the cervical vertebrae C1-C4. This is a sensitive nerves mediating the sensation, motoric mediating muscle movement.